Purchased a Grail CF SLX 8 Di2 a month ago and have loved it—but my front derailleur seems to have shipped a little off. Most shifts are fine but in my last 200 miles of riding I’ve dropped the chain twice during a front shift—having it “suck” into the area between the small chainring and bike frame. This seems too often and I haven’t been shifting under Pogacar power or anything wild—once on a gentle hill and once on light gravel. After washing the bike I noticed one of these times must have caused some substantial scratching and damage on the frame area around the bottom bracket and seat tube juncture [pictured]. This—to put it plainly—sucks.
I have a Canyon support case I already filed about it and fingers crossed it’s not structurally damaged carbon. LBS looking at it closely to see. Carbon repair is no joke and with paint a quote can easily run $400 or more plus three weeks out of the saddle. Canyon should be paying at least part of this but it’s just not what you want on a new high-end bike. On your new bike frames out of the box—before riding—even on Di2/AXS, have a mechanic look over the shifting and limits or DIY if you’re knowledgable. It might save you the enormous hassle I anticipate going through. Sigh, had to vent. Just want to ride my bike again.
fallingbomb on
You should have set the derailers properly when you built up the bike. You should more or less never drop the chain when the FD is setup. Shimano FDs will work still pretty decently even when nowhere near setup properly.
sportyboi98 on
Mine sometimes gets stuck when I am riding on super heavy gravel. Other than that, not really.
StandnIntheFire on
A k edge chain catcher is pretty cheap insurance. You’d think they would come stock.
4 Comments
Purchased a Grail CF SLX 8 Di2 a month ago and have loved it—but my front derailleur seems to have shipped a little off. Most shifts are fine but in my last 200 miles of riding I’ve dropped the chain twice during a front shift—having it “suck” into the area between the small chainring and bike frame. This seems too often and I haven’t been shifting under Pogacar power or anything wild—once on a gentle hill and once on light gravel. After washing the bike I noticed one of these times must have caused some substantial scratching and damage on the frame area around the bottom bracket and seat tube juncture [pictured]. This—to put it plainly—sucks.
I have a Canyon support case I already filed about it and fingers crossed it’s not structurally damaged carbon. LBS looking at it closely to see. Carbon repair is no joke and with paint a quote can easily run $400 or more plus three weeks out of the saddle. Canyon should be paying at least part of this but it’s just not what you want on a new high-end bike. On your new bike frames out of the box—before riding—even on Di2/AXS, have a mechanic look over the shifting and limits or DIY if you’re knowledgable. It might save you the enormous hassle I anticipate going through. Sigh, had to vent. Just want to ride my bike again.
You should have set the derailers properly when you built up the bike. You should more or less never drop the chain when the FD is setup. Shimano FDs will work still pretty decently even when nowhere near setup properly.
Mine sometimes gets stuck when I am riding on super heavy gravel. Other than that, not really.
A k edge chain catcher is pretty cheap insurance. You’d think they would come stock.